core/pkgs/build-support/release/maven-build.nix

{ stdenv, lib, name, src, doTest ? true, doTestCompile ? true, doJavadoc ? false
, doCheckstyle ? false, doRelease ? false, includeTestClasses ? true
, extraMvnFlags ? "", ... }@args:

let
  mvnFlags = lib.escapeShellArgs [
    "-Dmaven.repo.local=$M2_REPO"
    (lib.optionalString (!doTest) "-Dmaven.test.skip.exec=true")
    "${extraMvnFlags}"
  ];

in stdenv.mkDerivation ({
  inherit name src;
  phases = "setupPhase unpackPhase patchPhase mvnCompile ${
      lib.optionalString doTestCompile "mvnTestCompile mvnTestJar"
    } ${lib.optionalString doTest "mvnTest"} ${
      lib.optionalString doJavadoc "mvnJavadoc"
    } ${
      lib.optionalString doCheckstyle "mvnCheckstyle"
    } mvnJar mvnAssembly mvnRelease finalPhase";

  setupPhase = ''
    runHook preSetupPhase

    mkdir -p $out/nix-support
    export LANG="en_US.UTF-8"
    export LOCALE_ARCHIVE=$glibcLocales/lib/locale/locale-archive
    export M2_REPO=$TMPDIR/repository

    runHook postSetupPhase
  '';

  mvnCompile = ''
    mvn compile ${mvnFlags}
  '';

  mvnTestCompile = ''
    mvn test-compile ${mvnFlags}
  '';

  mvnTestJar = ''
    mvn jar:test-jar ${mvnFlags}
  '';

  mvnTest = ''
    mvn test ${mvnFlags}

    if [ -d target/site/cobertura ] ; then
      echo "report coverage $out/site/cobertura" >> $out/nix-support/hydra-build-products
    fi

    if [ -d target/surefire-reports ] ; then
      mvn surefire-report:report-only
      echo "report coverage $out/site/surefire-report.html" >> $out/nix-support/hydra-build-products
    fi
  '';

  mvnJavadoc = ''
    mvn javadoc:javadoc ${mvnFlags}
    echo "report javadoc $out/site/apidocs" >> $out/nix-support/hydra-build-products
  '';

  mvnCheckstyle = ''
    mvn checkstyle:checkstyle ${mvnFlags}
    echo "report checkstyle $out/site/checkstyle.html" >> $out/nix-support/hydra-build-products
  '';

  mvnJar = ''
    mvn jar:jar ${mvnFlags}
  '';

  mvnAssembly = ''
    mvn assembly:assembly -Dmaven.test.skip=true ${mvnFlags}
  '';

  mvnRelease = ''
    mkdir -p $out/release

    zip=$(ls target/*.zip| head -1)
    releaseName=$(basename $zip .zip)
    releaseName="$releaseName-r${toString src.rev or "0"}"
    cp $zip $out/release/$releaseName.zip

    echo "$releaseName" > $out/nix-support/hydra-release-name

    ${lib.optionalString doRelease ''
      echo "file zip $out/release/$releaseName.zip" >> $out/nix-support/hydra-build-products
    ''}
  '';

  finalPhase = ''
    if [ -d target/site ] ; then
      cp -R target/site $out/
      echo "report site $out/site" >> $out/nix-support/hydra-build-products
    fi
  '';
} // args)